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Weak value In quantum mechanics (and computation), a weak value is a quantity related to a shift of a measuring device's pointer when there is pre- and postselection. It should not be confused with a weak measurement, which is often defined in conjunction. The weak value was first defined by Yakir Aharonov, David Albert and Lev Vaidman, published in Physical Review Letters 1988, and is related to the two-state vector formalism. ==Definition and Derivation== There are many excellent review articles on weak values (see e.g. ) here we briefly cover the basics.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Weak value」の詳細全文を読む
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